Sign In | Join Free | My chinaqualitycrafts.com
China Unitech Energy System Limited logo
Unitech Energy System Limited
Unitech Energy System Limited
Site Member

4 Years

Home > >

31.79V Charging 28Volt 4000mAh Battery Power Pack

Unitech Energy System Limited

31.79V Charging 28Volt 4000mAh Battery Power Pack

Brand Name : KAYO

Model Number : 21700-Lithium-0554

Certification : UN38.3, MSDS, CE, ROSH, CB, IEC62133

Place of Origin : Shenzhen China

MOQ : 200 packs

Price : Negotiable

Payment Terms : 30% before production,70% before delivery

Supply Ability : 1000 packs per month

Delivery Time : 20

Packaging Details : two pcs in a carton box

Voltage : 28 V

Capacity : 4 Ah

Cell : Sony Lithium Ion Battery

Application : Sweeping robots, toy car, medical equipment

OEM/ODM : Acceptable

Warranty : 1 year

Cycle Life : 1000 times

Battery Type : rechargeable lithium battery packs

Protection : Over-Discharge, Over-current, Over-charge, High temperature

Key Words 1 : deep cycle lithium battery

Key Words 2 : rechargeable power pack

Key Words 3 : custom lithium ion battery manufacturers

Battery Size : 38*70*145 MM

Charge Method : CC/CV

Battery Color : Blue

Certificate : UN38.3, MSDS, ROHS, IEC62133, CB

Storage Humidity : 65±20% RH

Working Temperature : -20℃ ~60℃

Discharge Current : within 1C Rate

Internal Impedance : ≤100 mΩ

Charging Voltage : 31.79 V

Cut-off Voltage : 21.19 V

Contact Now

4000mAh 28 Volt Battery Power Pack with Custom Battery Design

Product Application

The model battery can be replaced for:

Drone batteries, Motorcycles batteries, cars batteries, buses batteries, trucks batteries, yachts batteries, Launch batteries, ships batteries, Tricycles batteries, Pedicab batteries, racing cars batteries, three wheeler vehicle batteries, Limousine batteries, Bank Power supply systems batteries, UPS batteries, Telecom Stations batteries, Solar Energy Storage batteries, Wind Energy Storage batteries, Hospital Power Supply system batteries, Home Power System batteries, etc.

Product Specification

Product Specification
Product Name 4000mAh 28 Volt Custom Battery Power Pack
Nominal Voltage 28 V (Customized 3.2V 3.7V12V 24V 36V... 72V)
Nominal Capacity 4 Ah (Customized 2.6Ah, 3.5Ah...200Ah)
Standard Charge Current 2000 mA
Max Charge Current 4000 mA
Charge Cut-off Voltage 31.79 V
Standard Discharge Current 2000 mA
Max Cont Discharge Current 4000 mA
Discharge Cut-off Voltage 21.19 V
Material NMC battery ( or LiFePO4 battery, Lithium Cobalt battery​)
Cell/ Brand Sony cell (or Panasonic cell, Samsung cell, Sumsung cell)
Cell Type Lithium Ion battery(or Custom Li polymer battery )
Temperature Range Charge temperature: 0°C to 45°C
Discharge temperature: -20°C to 60℃
Storage temperature: -10°C to 50℃
Life Cycle More than 1000cycles
Package Material Shrinked PVC
Certification ROHS, UN38.3, MSDS, IEC62133, CB...etc
Key Words Li-ion battery pack, 18650 battery pack, Lithium Ion battery pack, Rechargeable Lithium battery pack, 18650 Lithium battery pack, Custom Battery pack

31.79V Charging 28Volt 4000mAh Battery Power Pack

31.79V Charging 28Volt 4000mAh Battery Power Pack

Product Features

  • Smaller size.
  • Pollution free.
  • Lighter weight.
  • Longer cycle life.
  • High performance.
  • No memory effect.
  • High energy density.
  • High Discharge Voltage.
  • lower internal resistance.
  • Outstanding Stable discharge characteristics.

  • OEM&ODM orders are acceptable.
  • Competitive price with fine quality.
  • Powerful production capablicity and Short Lead Time.

  • BMS&PCM function: Over-charge protection, Over-Discharge protection, Over-current protection, Short Circuit protection, High Temperature protection, Balance Charge/Discharge protection, Communication protocol function, Battery Power indicator.

Warnings & Attentions

To ensure to use battery properly, please read the requirements carefully
Dispose Method:
Do not dispose of the battery in fire or expose to the heat.
Do not connect battery in charger or equipment with reverse positive and negative terminals.
Do not short circuit the battery.
Do not make battery in physical shock or vibration.
Do not disassemble battery.
Do not immerse battery in water or get it wet.
Do not use batteries mixed with other different type, model.
Keep battery away from children.
CHARGE
Battery must be charged in appropriate charger.
Do not use modified or damaged charger.
Do not use unqualified with the specified charger.
DISCHARGE
Do not discharge battery with surpassing current of specified.
Do not discharge battery when the ambient temperature is out of the specified.

Packaging & Shipping


One pc in a PE bag, and then in a standard export carton or Custom-made Package.

Delivery Methods:
① By express UPS/DHL/FEDEX/TNT (It takes 3-5 days to arrive).
② By airfreight (It takes about 3~7 days to arrive) .
③ By sea shipment (It takes about 35 days to arrive).

Delivery Time: 3-5 days for samples, 8-20 days for mass production, depend on the QTY.

Company Information
Established Year: 1999 (More than 20 years)
Office: ShenZhen, GuangDong China
Production: DongGuan,GuangDong China
Type of company: Sino-Japanese joint venture
R&D members: 46
Production employee: 500 (full-time)
Activity: R&D Design, Manufacture,and Sales of custom batteries
Certificate: ISO 9001:2008, ISO14000: 2004,UL, CB, KC, PSE, 3C, CE, FCC, UN38.3, RoHS
Mainly Products: Lithium Polymer Battery, Lithium Ion Battery, LiFePO4 battery,NI-MH battery and relative battery pack assembly
Mainly Customers: Honeywell, Ansmann, Philips, General Electronics, NTT, Huawei, Energizer, Bosch etc.

We provide one-stop battery power solution, including cell selection, battery pack design, PCM/BMS design, battery pack assembly, OEM Packing and after sales service.

FAQ
1. Q: What products do you offer?
A:We mainly lithium polymer battery, li polymer battery, lithium ion polymer battery, li fe po battery, lithium lifepo4, lifepo4 lithium battery, 18650 lithium ion battery, 18650 li battery, 18650 battery pack, 18650 lithium rechargeable battery, lifepo4 battery pack, lithium ion solar battery, lithium solar batteries, golf cart lithium battery, motorcycle lithium battery, lithium ion rv battery, marine lithium battery, ups lithium battery, lithium ion trolling motor battery, lithium ion boat battery, electric scooter lithium battery, lithium battery for ebike, lithium ion forklift battery, power wheels lithium battery, lithium batteries for solar panels, lithium ion deep cycle battery, lithium ion phosphate batteries, cobalt lithium ion battery, rechargeable lithium battery packs, lion energy lithium batteries, iron lithium battery, liion battery pack, custom lithium battery packs, custom lithium polymer battery and custom battery pack solutions for Telecom, Medical instrument, Military equipment and Industry Lighting.
Product Tags:

4000mAh Battery Power Pack

      

31.79V Charging Battery Power Pack

      

28Volt Deep Cycle Lithium Battery

       Quality 31.79V Charging 28Volt 4000mAh Battery Power Pack for sale

31.79V Charging 28Volt 4000mAh Battery Power Pack Images

Inquiry Cart 0
Send your message to this supplier
 
*From:
*To: Unitech Energy System Limited
*Subject:
*Message:
Characters Remaining: (0/3000)